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// Vulkan Cookbook
// ISBN: 9781786468154
// © Packt Publishing Limited
//
// Author:   Pawel Lapinski
// LinkedIn: https://www.linkedin.com/in/pawel-lapinski-84522329
//
// Chapter: 09 Command Recording and Drawing
// Recipe:  17 Recording command buffers on multiple threads

#include "09 Command Recording and Drawing/17 Recording command buffers on multiple threads.h"

namespace VulkanCookbook {

  bool RecordCommandBuffersOnMultipleThreads( std::vector<CommandBufferRecordingThreadParameters> const & threads_parameters,
                                              VkQueue                                                     queue,
                                              std::vector<WaitSemaphoreInfo>                              wait_semaphore_infos,
                                              std::vector<VkSemaphore>                                    signal_semaphores,
                                              VkFence                                                     fence ) {

    std::vector<std::thread> threads( threads_parameters.size() );
    for( size_t i = 0; i < threads_parameters.size(); ++i ) {
      threads[i] = std::thread( threads_parameters[i].RecordingFunction, threads_parameters[i].CommandBuffer );
    }

    std::vector<VkCommandBuffer> command_buffers( threads_parameters.size() );
    for( size_t i = 0; i < threads_parameters.size(); ++i ) {
      threads[i].join();
      command_buffers[i] = threads_parameters[i].CommandBuffer;
    }

    if( !SubmitCommandBuffersToQueue( queue, wait_semaphore_infos, command_buffers, signal_semaphores, fence ) ) {
      return false;
    }
    return true;
  }

} // namespace VulkanCookbook
